In what ways can a PHP form mailer script be optimized for performance and efficiency?

To optimize a PHP form mailer script for performance and efficiency, you can reduce unnecessary processing by validating input data before sending the email. This can help prevent errors and improve overall script execution speed. 

// Validate input data before sending the email
if(isset($_POST['submit'])){
    $name = $_POST['name'];
    $email = $_POST['email'];
    $message = $_POST['message'];

    // Validate input data
    if(!empty($name) && !empty($email) && !empty($message)){
        // Send email
        $to = 'recipient@example.com';
        $subject = 'Contact Form Submission';
        $headers = 'From: ' . $email;
        $body = 'Name: ' . $name . "\n";
        $body .= 'Email: ' . $email . "\n";
        $body .= 'Message: ' . $message;

        mail($to, $subject, $body, $headers);
        echo 'Email sent successfully!';
    } else {
        echo 'Please fill out all fields.';
    }
}

Keywords

PHP form mailer optimization performance efficiency

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